Vibration type soil loosening device for pile extractor

Abstract

The utility model discloses a vibration type soil loosening device for a pile extractor, which relates to the technical field of pile extractors and comprises a jacking mechanism, the upper portion of the jacking mechanism is fixedly connected with a pile extracting mechanism, the jacking mechanism comprises a fixing plate, and the upper portion of the fixing plate is fixedly connected with a first hydraulic oil cylinder. The first hydraulic oil cylinder extends to push the connecting plate to move upwards, the pile pulling mechanism is driven to move upwards, a pile body is pulled up, the vibration motor is started while the first hydraulic oil cylinder extends upwards to pull the pile, and the clamping plate and the pile body vibrate through the vibration acting force of the vibration motor. Pressure and friction force of soil on the pile body are broken through vibration of the pile body, so that the pressure and friction force of the soil on the pile body are reduced, the first hydraulic oil cylinder ascends conveniently to pull out the pile body, meanwhile, stress of the pile body is reduced, and the pile body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of pile pulling machines, in particular to a vibration type soil loosening device for a pile pulling machine. Background Art

[0002] A pile puller is a pile-driving machine that uses vibration, static force or hammering to pull piles out of the ground. It is widely used in the construction field.

[0003] In the prior art, pile pullers used in the construction field are mostly large-scale pile driving equipment, and the most common ones are excavator pile driver equipment. When supporting large foundation pits and reinforcing foundations, large-scale equipment is used to carry out pile driving and pile pulling operations, which can make construction more convenient and efficient. However, when performing pile pulling operations at a shallow depth on some small foundation pits, the common large-scale equipment will cause excessive disturbance to the foundation pit and its slopes when operating around or inside the foundation pit, which will cause damage to the foundation pit and its slopes. At the same time, traditional small-scale pile pullers use hydraulic cylinders to generate thrust to pull out the pile body. When the pile body is inserted in the soil for a long time, the soil pressure will clamp the pile body, and the friction between the soil and the surface of the pile body will increase. It is difficult for traditional small-scale pile pullers to pull out the pile body quickly, and the pile body is also prone to surface damage due to excessive pulling force, and even broken piles may occur. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that when carrying out pile driving or pile pulling operations at a relatively shallow depth in some small foundation pits, common large equipment will cause excessive disturbance to the foundation pit and its side slopes when operating around or inside the foundation pit, which will cause damage to the foundation pit and its side slopes. When the pile body is inserted in the soil body for a long time, the soil pressure will clamp the pile body, and the friction between the soil and the surface of the pile body will increase. It is difficult for traditional small pile pullers to pull out the pile body quickly. The pile body is also easily damaged on the surface due to excessive pulling force, and even the pile may break. Therefore, a vibrating soil loosening device for a pile puller is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vibrating soil loosening device for a pile pulling machine, comprising a jacking mechanism, the upper part of the jacking mechanism is fixedly connected to the pile pulling mechanism, the jacking mechanism comprises a fixed plate, the upper part of the fixed plate is fixedly connected to a No. 1 hydraulic cylinder, the upper part of the No. 1 hydraulic cylinder is fixedly connected to a connecting plate, the pile pulling mechanism comprises a guide rail, the guide rail is fixedly connected to the upper part of the connecting plate, and a slider is slidably connected inside the guide rail, the upper part of the slider is fixedly connected to a fixed block, the side of the fixed block is fixedly connected to the No. 2 hydraulic cylinder, one end of the No. 2 hydraulic cylinder is fixedly connected to a fixing frame, the side of the fixing frame is fixedly connected to a clamping plate, the side of the clamping plate is fixedly connected to a mounting plate, and the surface of the mounting plate is fixedly connected to a vibration motor.

[0006] Preferably, a threaded support rod is threadedly connected to the surface of the fixing plate, and the bottom end of the threaded support rod is rotatably connected to the support plate.

[0007] Preferably, a limit rod is fixedly connected inside the guide rail, and the limit rod is slidably connected to the slider.

[0008] Preferably, two springs are arranged inside the guide rail, and the two springs are symmetrically distributed on both sides of the slider.

[0009] Preferably, one end of the spring is fixedly connected to the side of the slider, and the other end of the spring is fixedly connected to the guide rail.

[0010] Preferably, the surface of the clamping plate is provided with a plurality of grooves, and the plurality of grooves are evenly distributed on the surface of the clamping plate.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the connecting plate is pushed upward by extending the No. 1 hydraulic cylinder, thereby driving the pile pulling mechanism to move upward and pulling up the pile body. The vibration motor is turned on while the No. 1 hydraulic cylinder is extended upward to pull up the pile. The vibration force of the vibration motor causes the clamping plate and the pile body to vibrate. The vibration of the pile body breaks the pressure and friction of the soil on the pile body, reduces the pressure and friction of the soil on the pile body, facilitates the No. 1 hydraulic cylinder to rise and pull out the pile body, and reduces the force on the pile body to protect the pile body.

[0013] 2. In the utility model, the fixing frame and the clamping plate are pushed to clamp and fix the pile body by extending the No. 2 hydraulic cylinder. When the No. 2 hydraulic cylinder pushes the fixing frame and the clamping plate to clamp and fix the pile body, the fixing block will move to drive the slider to slide along the inside of the guide rail. At this time, the two springs inside the guide rail are stretched and compressed respectively, and the clamping plate is clamped and fixed to the pile body by the elastic force of the spring. The clamping force of the clamping plate on the pile body is gradually increased due to the linear change of the elastic force of the spring, thereby avoiding a sudden increase in the clamping force and damage to the pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a vibration type soil loosening device for a pile puller;

[0015] Figure 2 The utility model provides a side view of the structure of a vibration type soil loosening device for a pile puller;

[0016] Figure 3 The utility model provides a structural schematic diagram of a pile pulling mechanism in a vibrating soil loosening device for a pile pulling machine;

[0017] Figure 4The utility model provides a schematic cross-sectional structure diagram of a guide rail in a vibration-type soil loosening device for a pile puller.

[0018] Legend: 1. Lifting mechanism; 11. Fixed plate; 12. No. 1 hydraulic cylinder; 13. Connecting plate; 14. Threaded support rod; 15. Support plate; 2. Pile pulling mechanism; 21. Guide rail; 22. Slider; 23. Fixed block; 24. No. 2 hydraulic cylinder; 25. Fixed frame; 26. Clamp; 27. Mounting plate; 28. Vibration motor; 29. ​​Limit rod; 210. Spring. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1

[0022] like Figure 1-Figure 4 As shown, the utility model provides a vibrating soil loosening device for a pile pulling machine, comprising a jacking mechanism 1, a pile pulling mechanism 2 is fixedly connected to the upper part of the jacking mechanism 1, the jacking mechanism 1 comprises a fixed plate 11, a No. 1 hydraulic cylinder 12 is fixedly connected to the upper part of the fixed plate 11, a connecting plate 13 is fixedly connected to the upper part of the No. 1 hydraulic cylinder 12, the pile pulling mechanism 2 comprises a guide rail 21, the guide rail 21 is fixedly connected to the upper part of the connecting plate 13, and a slider 22 is slidably connected inside the guide rail 21, a fixed block 23 is fixedly connected to the upper part of the slider 22, a No. 2 hydraulic cylinder 24 is fixedly connected to the side of the fixed block 23, a fixed frame 25 is fixedly connected to one end of the No. 2 hydraulic cylinder 24, a clamping plate 26 is fixedly connected to the side of the clamping plate 26, a mounting plate 27 is fixedly connected to the side of the clamping plate 26, and a vibration motor 28 is fixedly connected to the surface of the mounting plate 27.

[0023] The specific settings and functions of this embodiment are described in detail below. The device is placed on the top of the pile body. The fixing frame 25 and the clamping plate 26 are pushed to clamp and fix the pile body by extending the No. 2 hydraulic cylinder 24. After the pile body is clamped and fixed, the connecting plate 13 is pushed to move upward by extending the No. 1 hydraulic cylinder 12, driving the pile pulling mechanism 2 to move upward to pull up the pile body. While the No. 1 hydraulic cylinder 12 is extended upward to pull out the pile, the vibration motor 28 is turned on. The vibration force of the vibration motor 28 causes the clamping plate 26 and the pile body to vibrate. The vibration of the pile body breaks the pressure and friction of the soil on the pile body, reduces the pressure and friction of the soil on the pile body, facilitates the No. 1 hydraulic cylinder 12 to rise and pull out the pile body, and at the same time reduces the force on the pile body to protect the pile body.

[0024] Embodiment 2

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, a threaded support rod 14 is threadedly connected to the surface of the fixed plate 11, and the bottom end of the threaded support rod 14 is rotatably connected to the support plate 15. A limit rod 29 is fixedly connected inside the guide rail 21, and the limit rod 29 is slidably connected to the slider 22. Two springs 210 are arranged inside the guide rail 21, and the two springs 210 are symmetrically distributed on both sides of the slider 22. One end of the spring 210 is fixedly connected to the side of the slider 22, and the other end of the spring 210 is fixedly connected to the guide rail 21. A plurality of grooves are arranged on the surface of the splint 26, and the plurality of grooves are evenly distributed on the surface of the splint 26.

[0026] The effect achieved by the entire embodiment is that the device is placed on the top of the pile body. If the ground is uneven, the distance between the fixing plate 11 and the supporting plate 15 is adjusted by rotating the threaded support rod 14, so as to adjust the level of the surface of the fixing plate 11, so that the position of the pile pulling mechanism 2 on the upper part of the jacking mechanism 1 is kept horizontal. When the No. 2 hydraulic cylinder 24 pushes the fixing frame 25 and the clamping plate 26 to clamp and fix the pile body, the fixing block 23 will move and drive the slider 22 to slide along the inside of the guide rail 21. At this time, the two springs 210 inside the guide rail 21 are stretched and compressed respectively, and the clamping plate 26 is clamped and fixed to the pile body through the elastic force of the spring 210. The clamping force of the clamping plate 26 on the pile body is gradually increased through the linear change characteristic of the elastic force of the spring 210, so as to avoid a sudden increase in the clamping force and damage to the pile body.

[0027] The method of use and working principle of the device are as follows: the device is placed on the top of the pile body. If the ground is uneven, the distance between the fixing plate 11 and the supporting plate 15 is adjusted by rotating the threaded support rod 14, thereby adjusting the level of the surface of the fixing plate 11, so that the position of the pile pulling mechanism 2 on the upper part of the jacking mechanism 1 remains horizontal;

[0028] Then, the No. 2 hydraulic cylinder 24 is extended to push the fixing frame 25 and the clamping plate 26 to clamp and fix the pile body. When the No. 2 hydraulic cylinder 24 pushes the fixing frame 25 and the clamping plate 26 to clamp and fix the pile body, the fixing block 23 moves to drive the slider 22 to slide along the inside of the guide rail 21. At this time, the two springs 210 inside the guide rail 21 are stretched and compressed respectively, and the clamping plate 26 is clamped and fixed to the pile body by the elastic force of the spring 210. The clamping force of the clamping plate 26 on the pile body is gradually increased by the linear change of the elastic force of the spring 210, so as to avoid a sudden increase in the clamping force and damage to the pile body.

[0029] After the pile body is clamped and fixed, the connecting plate 13 is pushed upward by extending the No. 1 hydraulic cylinder 12, thereby driving the pile pulling mechanism 2 to move upward and pulling up the pile body. While the No. 1 hydraulic cylinder 12 is extended upward to pull up the pile, the vibration motor 28 is turned on, and the vibration force of the vibration motor 28 causes the clamping plate 26 and the pile body to vibrate. The vibration of the pile body breaks the pressure and friction of the soil on the pile body, reduces the pressure and friction of the soil on the pile body, and facilitates the No. 1 hydraulic cylinder 12 to rise and pull out the pile body, while reducing the force on the pile body and protecting the pile body.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vibrating soil loosening device for a pile puller, characterized in that: The invention comprises a jacking mechanism (1), the upper part of which is fixedly connected to a pile pulling mechanism (2), the jacking mechanism (1) comprises a fixing plate (11), the upper part of which is fixedly connected to a No. 1 hydraulic oil cylinder (12), the upper part of which is fixedly connected to a connecting plate (13), the pile pulling mechanism (2) comprises a guide rail (21), the guide rail (21) is fixedly connected to the upper part of the connecting plate (13), and the guide rail (21) has a sliding inner portion. A slider (22) is movably connected, a fixed block (23) is fixedly connected to the upper part of the slider (22), a side of the fixed block (23) is fixedly connected to a No. 2 hydraulic cylinder (24), one end of the No. 2 hydraulic cylinder (24) is fixedly connected to a fixed frame (25), a side of the fixed frame (25) is fixedly connected to a clamping plate (26), a side of the clamping plate (26) is fixedly connected to a mounting plate (27), and a surface of the mounting plate (27) is fixedly connected to a vibration motor (28).

2. A vibrating soil loosening device for a pile puller according to claim 1, characterized in that: A threaded support rod (14) is threadedly connected to the surface of the fixing plate (11), and the bottom end of the threaded support rod (14) is rotatably connected to a support plate (15).

3. The vibrating soil loosening device for a pile puller according to claim 1, characterized in that: A limiting rod (29) is fixedly connected inside the guide rail (21), and the limiting rod (29) is slidably connected to the slider (22).

4. The vibrating soil loosening device for a pile puller according to claim 1, characterized in that: Two springs (210) are arranged inside the guide rail (21), and the two springs (210) are symmetrically distributed on both sides of the slider (22).

5. A vibrating soil loosening device for a pile puller according to claim 4, characterized in that: One end of the spring (210) is fixedly connected to the side of the slider (22), and the other end of the spring (210) is fixedly connected to the guide rail (21).

6. The vibrating soil loosening device for a pile puller according to claim 1, characterized in that: The surface of the clamping plate (26) is provided with a plurality of grooves, and the plurality of grooves are evenly distributed on the surface of the clamping plate (26).

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